A First Order ship utilizing Biohexacrypt code Bio-hexacrypt, which is also known as biohexacrypt code, represented an exceptionally safe method of code encryption, that was created by the Kupohans.
This bio-hexacrypt method was implemented during the time of the New Republic era, and most notably by the First Order. It served the purpose of protecting important information, like data networks and clearance codes. As an example, the clearance codes for the Supremacy were protected via bio-hexaencryption, and they were re-scrambled on an hourly basis. This led Finn and Rose Tico to search for the Master Codebreaker in an attempt to gain access.
DJ possessed the ability to create specialized computer spikes along with bypass keys that could confuse bio-hexacryption, although this effect was only temporary.
The true identity of the Master Codebreaker was concealed, but he did publish his personal information on a publicly accessible node. This data was secured using a quantum-spread bio-hexacrypt code. He declared that whoever could successfully break the code would be welcome to take his position as Master Codebreaker. However, as of the time of the Mission to Canto Bight, nobody had even gotten close to achieving this.